Sulfonylurea-tolerant sunflower plants
AssigneeE. I. Du Pont de Nemours and Company
InventorsJerome Gabard, Jean Pierre Huby
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Abstract
This invention relates to sunflower lines and hybrids tolerant to sulfonylurea herbicides wherein the tolerance trait is obtained using induced mutagenesis and artificial selection, and to a method for selectively controlling undesired vegetation, including parasitic weeds, by applying sulfonylurea herbicides to sulfonylurea-tolerant sunflower crops.
Claims28
A method for producing a sunflower line containing a highly heritable trait conferring tolerance to sulfonylurea herbicides, wherein the method comprises:
- (a) treating sunflower seeds with a mutagenic agent;
- (b) growing the treated seeds into mature plants to produce second-generation seeds;
- (c) harvesting the second-generation seeds;
- (d) germinating the second-generation seeds in the presence of an selectably effective amount of a sulfonylurea herbicide to select for survival only germinated seeds containing a trait conferring tolerance to the sulfonylurea herbicide;
- and
- (e) growing a surviving germinated seed into a mature plant to produce through self-pollination seeds of the sunflower line containing the heritable trait.
A sunflower seed containing a highly heritable trait conferring tolerance to sulfonylurea herbicides, wherein said trait is obtained through mutagenesis.
Dependencies are inferred from the claim text.